Advanced Configuration and Power Interface …

1 Advanced Configuration and Power Interface SpecificationHewlett-Packard CorporationIntel CorporationMicrosoft CorporationPhoenix Technologies CorporationRevision [December 6, 2011] Advanced Configuration and Power Interface SpecificationiiDecember 6, 2011 Version 2006 - 2011 All Rights Corporation, Intel Corporation, Microsoft Corporation, Phoenix Technologies Ltd., Toshiba CorporationINTELLECTUAL PROPERTY DISCLAIMERTHIS SPECIFICATION IS PROVIDED "AS IS" WITH NO WARRANTIES WHATSOEVER INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED OR INTENDED HEREBY. HP, INTEL, MICROSOFT, PHOENIX, AND TOSHIBA DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF PROPRIETARY RIGHTS, RELATING TO IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION.

2 HP, INTEL, MICROSOFT, PHOENIX, AND TOSHIBA DO NOT WARRANT OR REPRESENT THAT SUCH IMPLEMENTATION(S) WILL NOT INFRINGE SUCH , Win32, Windows, and Windows NT are registered trademarks of Microsoft other product names are trademarks, registered trademarks, or service marks of their respective HistoryRevisionChange DescriptionAffected 2, Enumeration Power , , GTDT Locking Targets from PLD clarification for handhelf form Extended GPIO-signaled Event Numbers ( ) D3 Cold , through for SIO ROM (Get ROM Data) , Reserved Table ( )TimeAndAlarmDevice Modification Collaborative Processor Performance Control Platform Communications Channel added (new ch. 14)Ch 14 (new) -Platform_Communication_Channel_and_CPPC _changes(new) SPB , , , , , , , , , GPIO , , , , , , , ( ) Fixed DMA Descriptor , Device identification , , , , Interrupt Descriptors for Generic Interrupt Controller , Configuration and Power Interface SpecificationivDecember 6, 2011 Version HW-reduced ACPI , 4, , , , , , , , , , 12, , , , , 15, , , , , Remove a line (reference) not fix AML opcode fix table (tables)

3 Update Constant Descriptions , , , RASF Fixed Example Update Package Description Table Definition Language20, MPST , , , , EINJ , , ( ) Firmware Performance Data Table (FPDT) , Firmware Performance Data Table (FPDT) ( ) Additional Hardware Error Notification ( ) BMC Requested Graceful Shutdown , _DSM function 0 ROM (Get ROM Data) DescriptionAffected Apr. 2010 Errata corrected and clarifications text concerning government requirement of mechanical offClarified URL update document, Corrected section references for apic , SLIT, SRAT in Table 5-5, Update URLs and reformated Table 5-6 Corrected reference to Interrupt Source Override StructureCorrected name for CPEP tableCorrected reference to SMBus, should be IPMIC larified BusCheck and DeviceCheck notifications in Table 5-53 Added link to non-ACPI Plug and Play ID reference documentAdded missing _ATT and _GAI names, Corrected page/section references in Table 5-67 Corrected EndTag name value.

4 Was 0x78, correct value is 0x79 Table 6-33 Consumer/Producer bit is ignored (Restored change that had been lost)Clarified use of _GLK (Global Lock) objectCorrected definition of _TSD objectCorrected definition of _PSD objectCorrected table name (CPEP)Corrected maximum positive adjustment value. Was 500%, correct value is 50%, Updated description of example 300 to 400 lux, Eliminated hardcoded package lengths in examples, Changed brightness to highest ambient light value Corrected reference to _IDE, should be _GTM. Corrected table referenceClarified GPE Block Device DescriptionCorrected _PLD object examplesRepaired diagram that would not display properly Figure 10-2 Added missing _BCT method to Table 10-3 Clarified that OEM Information field should contain NULL string if not supported in Table 10-4 &Table 10-5 Corrected description of _BTM arguments and return valueClarified description of _BCT return valueCorrected HID for Power Source device.

5 Was ACPI0003, correct value is ACPI0004 Corrected _PIF example. First package element was a Buffer, should be Integer, Clarified that OEM Information field should contain NULL string if not supported Table 10-10 Corrected description of _SHL method Table 10-11 Clarified _PRL return value, a list of ReferencesCorrected _PMC example. First package element was a Buffer, should be IntegerClarified that OEM Information field should contain NULL string if not supported Table ,2, RevisionChange DescriptionAffected SectionsAdvanced Configuration and Power Interface SpecificationviDecember 6, 2011 Version TODO note. Updated exampleRepaired diagram that would not display properly Figure 15-1 Corrected error conditions from fatal to correctedCorrected several incorrect section references, Clarified number of Generic Error Data Entry structures is >=1 (not Zero)Clarified number of Generic Error Data Entry structures is >=1 (not Zero)Added new section clarifying SCI notification for generic error sourcesAdded new section describing Firmware First error handlingClarified purpose of the codes Table 17-17 Added reference to table of COMMAND_STATUS codes Table 17-23 Clarified purpose of the command status codes in Table 17-27 and the error type definitions in Table 17-28 Added _ATT resource descriptor field nameClarified rules for Buffer vs.

6 Integer return types from a field unitCorrected section/page , 2009 Major specification revision. Clock Domains, x2 apic Support, Logical Processor Idling, Corrected Platform Error Polling Table, Maximum System Characteristics Table, Power Metering and Budgeting, IPMI Operation Region, USB3 Support in _PLD, Re-evaluation of _PPC acknowledgement via _OST, Thermal Model Enhancements, _OSC at \_SB, Wake Alarm Device, Battery Related Extensions, Memory Bandwidth Monitoring and Reporting, ACPI Hardware Error Interfaces, 2006 Errata corrected and clarifications Dec. 2005 Errata corrected and clarifications Sept. 2004 Major specification revision. General Configuration enhancements. Inter-Processor Power , performance, and throttling state dependency support added. Support for > 256 processors added.

7 NUMA Distancing support added. PCI Express support added. SATA support added. Ambient Light Sensor and User Presence device support added. Thermal model extended beyond processor-centric Aug. 2003 Errata corrected and clarifications Oct. 2002 Errata corrected and clarifications Mar. 2002 Errata corrected and clarifications added. ACPI Errata Document Revision through Errata Doc. Rev. corrected and clarifications Errata Doc. Rev. corrected and clarifications Errata Doc. Rev. corrected and clarifications DescriptionAffected SectionsACPI Errata Doc. Rev. corrected and clarifications Errata Doc. Rev. corrected and clarifications Errata Doc. Rev. corrected and clarifications Aug. 2000 Major specification revision. 64-bit addressing support added.

8 Processor and device performance state support added. Numerous multiprocessor workstation and server-related enhancements. Consistency and readability enhancements Feb. 1999 Errata corrected and clarifications added. New interfaces Jul. 1998 Errata corrected and clarifications added. New interfaces Dec. 1996 Original DescriptionAffected SectionsAdvanced Configuration and Power Interface SpecificationviiiDecember 6, 2011 Version Configuration and Power Interface SpecificationHewlett-Packard/Intel/Micro soft/Phoenix/ToshibavContents1 Principal Goals .. Power Management Legacy Support .. OEM Implementation Strategy .. Power and Sleep Buttons .. ACPI Specification and the Structure Of ACPI .. OS and Platform Compliance .. Platform Implementations of ACPI-defined Interfaces.

9 OSPM Implementations .. OS Target Document Organization .. ACPI Introduction and Overview .. Programming Models .. Implementation Technical Reference .. Related Documents .. 152 Definition of General ACPI Terminology .. Global System State Definitions .. Device Power State Sleeping State Definitions .. Processor Power State Definitions .. Device and Processor Performance State Definitions .. 293 ACPI Overview .. System Power Management .. Power Power Platform Power Management Characteristics .. Device Power Management .. Power Management Device Power States .. Device Power State Definitions .. Controlling Device Getting Device Power Capabilities .. Setting Device Power Getting Device Power Status .. 38viHewlett-Packard/Intel/Microsoft/ Waking the Computer.

10 Example: Modem Device Power Management .. Processor Power Device and Processor Performance States .. Configuration and Plug and Play .. Device Configuration Example: Configuring the Modem .. NUMA Nodes .. System Events .. Battery Battery Communications .. Battery Capacity .. Battery Gas Gauge .. Low Battery Levels .. Battery Thermal Managment .. Active and Passive Cooling Modes .. Performance vs. Energy Conservation .. Acoustics (Noise) .. Multiple Thermal Flexible Platform Architecture Support .. Hardware-reduced ACPI .. Low- Power Idle .. Connection Resources .. 524 ACPI Hardware Specification .. Hardware-Reduced ACPI .. Hardware-Reduced Events .. Fixed Hardware Programming Model .. Functional Fixed Hardware .. Generic Hardware Programming Model.